Across
- 2. Substance that can donate one hydrogen ion
- 3. First periodic table publisher
- 6. Flour+Water
- 8. Uses chemical symbols to represent the atoms of the elements
- 9. Reaction in which energy is absorbed
- 11. Pair of shared electrons between two atoms
- 12. Scale in which acidity is measured
- 13. Substance that increases the rate of a chemical reaction
- 14. Indication of the amount of molecules that take part in a reaction
- 15. Discoverer of the law of conservation of mass
- 17. Mixture of metal and one or more other elements
- 18. Substances present at the beginning of a chemical reaction
- 19. Homogeneous mixture
Down
- 1. Combination of protons and neutrons
- 4. Reaction in which energy is released
- 5. Substance that can accept one hydrogen ion
- 7. Positively charged particle
- 8. Producing of new substances by changing the way atoms are arranged
- 10. Substances formed by a chemical reaction
- 12. Solid product
- 16. Group of atoms held together by covalent bonds